From cee89e70a6011c3fcae29ad95d5fec4b2026d055 Mon Sep 17 00:00:00 2001 From: Sona Kurazyan Date: Thu, 25 Nov 2021 11:08:01 +0100 Subject: Add example showing the benefits of using bindable properties Added two examples for modeling a subscription service: signal/slot connection-based and bindable property-based. The examples are based on the example from Fabian's Qt WS talk about the bindable properties. Pick-to: 6.2 Task-number: QTBUG-97655 Change-Id: I0345913b8b6e5c40b8477e128d36483598bdfcaa Reviewed-by: Qt CI Bot Reviewed-by: Ivan Solovev Reviewed-by: Fabian Kosmale --- examples/corelib/bindableproperties/CMakeLists.txt | 2 + .../bindableproperties/bindableproperties.pro | 4 + .../bindablesubscription/CMakeLists.txt | 53 ++++ .../bindablesubscription/bindablesubscription.cpp | 90 +++++++ .../bindablesubscription/bindablesubscription.h | 87 +++++++ .../bindablesubscription/bindablesubscription.pro | 22 ++ .../bindablesubscription/bindableuser.cpp | 61 +++++ .../bindablesubscription/bindableuser.h | 81 ++++++ .../bindablesubscription/main.cpp | 116 +++++++++ .../bindableproperties/shared/countries.qrc | 7 + .../corelib/bindableproperties/shared/finland.png | Bin 0 -> 1062 bytes .../corelib/bindableproperties/shared/germany.png | Bin 0 -> 483 bytes .../corelib/bindableproperties/shared/norway.png | Bin 0 -> 5190 bytes .../shared/subscriptionwindow.cpp | 63 +++++ .../bindableproperties/shared/subscriptionwindow.h | 76 ++++++ .../shared/subscriptionwindow.ui | 280 +++++++++++++++++++++ .../bindableproperties/subscription/CMakeLists.txt | 53 ++++ .../bindableproperties/subscription/main.cpp | 128 ++++++++++ .../subscription/subscription.cpp | 106 ++++++++ .../bindableproperties/subscription/subscription.h | 91 +++++++ .../subscription/subscription.pro | 22 ++ .../bindableproperties/subscription/user.cpp | 67 +++++ .../corelib/bindableproperties/subscription/user.h | 82 ++++++ 23 files changed, 1491 insertions(+) create mode 100644 examples/corelib/bindableproperties/CMakeLists.txt create mode 100644 examples/corelib/bindableproperties/bindableproperties.pro create mode 100644 examples/corelib/bindableproperties/bindablesubscription/CMakeLists.txt create mode 100644 examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.cpp create mode 100644 examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.h create mode 100644 examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.pro create mode 100644 examples/corelib/bindableproperties/bindablesubscription/bindableuser.cpp create mode 100644 examples/corelib/bindableproperties/bindablesubscription/bindableuser.h create mode 100644 examples/corelib/bindableproperties/bindablesubscription/main.cpp create mode 100644 examples/corelib/bindableproperties/shared/countries.qrc create mode 100644 examples/corelib/bindableproperties/shared/finland.png create mode 100644 examples/corelib/bindableproperties/shared/germany.png create mode 100644 examples/corelib/bindableproperties/shared/norway.png create mode 100644 examples/corelib/bindableproperties/shared/subscriptionwindow.cpp create mode 100644 examples/corelib/bindableproperties/shared/subscriptionwindow.h create mode 100644 examples/corelib/bindableproperties/shared/subscriptionwindow.ui create mode 100644 examples/corelib/bindableproperties/subscription/CMakeLists.txt create mode 100644 examples/corelib/bindableproperties/subscription/main.cpp create mode 100644 examples/corelib/bindableproperties/subscription/subscription.cpp create mode 100644 examples/corelib/bindableproperties/subscription/subscription.h create mode 100644 examples/corelib/bindableproperties/subscription/subscription.pro create mode 100644 examples/corelib/bindableproperties/subscription/user.cpp create mode 100644 examples/corelib/bindableproperties/subscription/user.h (limited to 'examples/corelib/bindableproperties') diff --git a/examples/corelib/bindableproperties/CMakeLists.txt b/examples/corelib/bindableproperties/CMakeLists.txt new file mode 100644 index 0000000000..c6d9076fd8 --- /dev/null +++ b/examples/corelib/bindableproperties/CMakeLists.txt @@ -0,0 +1,2 @@ +qt_internal_add_example(bindablesubscription) +qt_internal_add_example(subscription) diff --git a/examples/corelib/bindableproperties/bindableproperties.pro b/examples/corelib/bindableproperties/bindableproperties.pro new file mode 100644 index 0000000000..fab8d8107a --- /dev/null +++ b/examples/corelib/bindableproperties/bindableproperties.pro @@ -0,0 +1,4 @@ +TEMPLATE = subdirs +SUBDIRS = \ + bindablesubscription \ + subscription diff --git a/examples/corelib/bindableproperties/bindablesubscription/CMakeLists.txt b/examples/corelib/bindableproperties/bindablesubscription/CMakeLists.txt new file mode 100644 index 0000000000..b2909589a5 --- /dev/null +++ b/examples/corelib/bindableproperties/bindablesubscription/CMakeLists.txt @@ -0,0 +1,53 @@ +cmake_minimum_required(VERSION 3.16) +project(bindablesubscription LANGUAGES CXX) + +set(CMAKE_INCLUDE_CURRENT_DIR ON) + +set(CMAKE_AUTOMOC ON) +set(CMAKE_AUTORCC ON) +set(CMAKE_AUTOUIC ON) + +if(NOT DEFINED INSTALL_EXAMPLESDIR) + set(INSTALL_EXAMPLESDIR "examples") +endif() + +set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/corelib/bindableproperties/bindablesubscription") + +find_package(Qt6 COMPONENTS Core) +find_package(Qt6 COMPONENTS Gui) +find_package(Qt6 COMPONENTS Widgets) + +qt_add_executable(bindablesubscription + ../shared/subscriptionwindow.cpp ../shared/subscriptionwindow.h ../shared/subscriptionwindow.ui + main.cpp + main.cpp + bindablesubscription.cpp bindablesubscription.h + bindableuser.cpp bindableuser.h +) +target_link_libraries(bindablesubscription PUBLIC + Qt::Core + Qt::Gui + Qt::Widgets +) + +# Resources: +set(countries_resource_files + "../shared/finland.png" + "../shared/germany.png" + "../shared/norway.png" +) + +qt6_add_resources(bindablesubscription "countries" + PREFIX + "/" + BASE + "../shared" + FILES + ${countries_resource_files} +) + +install(TARGETS bindablesubscription + RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" + BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" + LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}" +) diff --git a/examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.cpp b/examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.cpp new file mode 100644 index 0000000000..d962216cd9 --- /dev/null +++ b/examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.cpp @@ -0,0 +1,90 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "bindablesubscription.h" +#include "bindableuser.h" + +BindableSubscription::BindableSubscription(BindableUser *user) : m_user(user) +{ + Q_ASSERT(user); + + m_price.setBinding([this] { return qRound(calculateDiscount() * m_duration * basePrice()); }); + + m_isValid.setBinding([this] { + return m_user->country() != BindableUser::None && m_user->age() > 12; + }); +} + +void BindableSubscription::setDuration(Duration newDuration) +{ + m_duration = newDuration; +} + +double BindableSubscription::calculateDiscount() const +{ + switch (m_duration) { + case Monthly: + return 1; + case Quarterly: + return 0.9; + case Yearly: + return 0.6; + } + Q_ASSERT(false); + return -1; +} + +int BindableSubscription::basePrice() const +{ + if (m_user->country() == BindableUser::None) + return 0; + + return (m_user->country() == BindableUser::Norway) ? 100 : 80; +} diff --git a/examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.h b/examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.h new file mode 100644 index 0000000000..86dd0bdf26 --- /dev/null +++ b/examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.h @@ -0,0 +1,87 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef BINDABLESUBSCRIPTION_H +#define BINDABLESUBSCRIPTION_H + +#include +#include + +class BindableUser; + +class BindableSubscription +{ +public: + enum Duration { Monthly = 1, Quarterly = 4, Yearly = 12 }; + + BindableSubscription(BindableUser *user); + BindableSubscription(const BindableSubscription &) = delete; + + int price() const { return m_price; } + QBindable bindablePrice() { return &m_price; } + + Duration duration() const { return m_duration; } + void setDuration(Duration newDuration); + QBindable bindableDuration() { return &m_duration; } + + bool isValid() const { return m_isValid; } + QBindable bindableIsValid() { return &m_isValid; } + +private: + double calculateDiscount() const; + int basePrice() const; + + BindableUser *m_user; + QProperty m_duration { Monthly }; + QProperty m_price { 0 }; + QProperty m_isValid { false }; +}; + +#endif // BNDABLESUBSCRIPTION_H diff --git a/examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.pro b/examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.pro new file mode 100644 index 0000000000..321a1226c4 --- /dev/null +++ b/examples/corelib/bindableproperties/bindablesubscription/bindablesubscription.pro @@ -0,0 +1,22 @@ +QT += widgets +TARGET = bindablesubscription + +SOURCES += main.cpp \ + bindablesubscription.cpp \ + bindableuser.cpp \ + ../shared/subscriptionwindow.cpp + +target.path = $$[QT_INSTALL_EXAMPLES]/corelib/bindableproperties/bindablesubscription +INSTALLS += target + +FORMS += \ + ../shared/subscriptionwindow.ui + +HEADERS += \ + bindablesubscription.h \ + bindableuser.h \ + ../shared/subscriptionwindow.h + +RESOURCES += \ + ../shared/countries.qrc + diff --git a/examples/corelib/bindableproperties/bindablesubscription/bindableuser.cpp b/examples/corelib/bindableproperties/bindablesubscription/bindableuser.cpp new file mode 100644 index 0000000000..fc651c2579 --- /dev/null +++ b/examples/corelib/bindableproperties/bindablesubscription/bindableuser.cpp @@ -0,0 +1,61 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "bindableuser.h" + +void BindableUser::setCountry(Country country) +{ + m_country = country; +} + +void BindableUser::setAge(int age) +{ + m_age = age; +} diff --git a/examples/corelib/bindableproperties/bindablesubscription/bindableuser.h b/examples/corelib/bindableproperties/bindablesubscription/bindableuser.h new file mode 100644 index 0000000000..1c37078076 --- /dev/null +++ b/examples/corelib/bindableproperties/bindablesubscription/bindableuser.h @@ -0,0 +1,81 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef BINDABLEUSER_H +#define BINDABLEUSER_H + +#include + +class BindableUser +{ +public: + enum Country { + None, + Finland, + Germany, + Norway, + }; + + BindableUser() = default; + BindableUser(const BindableUser &) = delete; + + Country country() const { return m_country; } + void setCountry(Country country); + QBindable bindableCountry() { return &m_country; } + + int age() const { return m_age; } + void setAge(int age); + QBindable bindableAge() { return &m_age; } + +private: + QProperty m_country { None }; + QProperty m_age { 0 }; +}; +#endif // BINDABLEUSER_H diff --git a/examples/corelib/bindableproperties/bindablesubscription/main.cpp b/examples/corelib/bindableproperties/bindablesubscription/main.cpp new file mode 100644 index 0000000000..2ee39c5bb5 --- /dev/null +++ b/examples/corelib/bindableproperties/bindablesubscription/main.cpp @@ -0,0 +1,116 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "../shared/subscriptionwindow.h" +#include "bindablesubscription.h" +#include "bindableuser.h" + +#include +#include +#include +#include +#include +#include + +int main(int argc, char *argv[]) +{ + QApplication a(argc, argv); + BindableUser user; + BindableSubscription subscription(&user); + + SubscriptionWindow w; + + // Initialize subscription data + QRadioButton *monthly = w.findChild("btnMonthly"); + QObject::connect(monthly, &QRadioButton::clicked, [&] { + subscription.setDuration(BindableSubscription::Monthly); + }); + QRadioButton *quarterly = w.findChild("btnQuarterly"); + QObject::connect(quarterly, &QRadioButton::clicked, [&] { + subscription.setDuration(BindableSubscription::Quarterly); + }); + QRadioButton *yearly = w.findChild("btnYearly"); + QObject::connect(yearly, &QRadioButton::clicked, [&] { + subscription.setDuration(BindableSubscription::Yearly); + }); + + // Initialize user data + QPushButton *germany = w.findChild("btnGermany"); + QObject::connect(germany, &QPushButton::clicked, [&] { + user.setCountry(BindableUser::Germany); + }); + QPushButton *finland = w.findChild("btnFinland"); + QObject::connect(finland, &QPushButton::clicked, [&] { + user.setCountry(BindableUser::Finland); + }); + QPushButton *norway = w.findChild("btnNorway"); + QObject::connect(norway, &QPushButton::clicked, [&] { + user.setCountry(BindableUser::Norway); + }); + + QSpinBox *ageSpinBox = w.findChild("ageSpinBox"); + QObject::connect(ageSpinBox, &QSpinBox::valueChanged, [&](int value) { + user.setAge(value); + }); + + QLabel *priceDisplay = w.findChild("priceDisplay"); + + // Track price changes + auto priceChangeHandler = subscription.bindablePrice().subscribe([&] { + priceDisplay->setText(QString::number(subscription.price())); + }); + + auto priceValidHandler = subscription.bindableIsValid().subscribe([&] { + priceDisplay->setEnabled(subscription.isValid()); + }); + + w.show(); + return a.exec(); +} diff --git a/examples/corelib/bindableproperties/shared/countries.qrc b/examples/corelib/bindableproperties/shared/countries.qrc new file mode 100644 index 0000000000..cdf6312ebb --- /dev/null +++ b/examples/corelib/bindableproperties/shared/countries.qrc @@ -0,0 +1,7 @@ + + + germany.png + norway.png + finland.png + + diff --git a/examples/corelib/bindableproperties/shared/finland.png b/examples/corelib/bindableproperties/shared/finland.png new file mode 100644 index 0000000000..92653289c1 Binary files /dev/null and b/examples/corelib/bindableproperties/shared/finland.png differ diff --git a/examples/corelib/bindableproperties/shared/germany.png b/examples/corelib/bindableproperties/shared/germany.png new file mode 100644 index 0000000000..efc389f52a Binary files /dev/null and b/examples/corelib/bindableproperties/shared/germany.png differ diff --git a/examples/corelib/bindableproperties/shared/norway.png b/examples/corelib/bindableproperties/shared/norway.png new file mode 100644 index 0000000000..daee6c3c15 Binary files /dev/null and b/examples/corelib/bindableproperties/shared/norway.png differ diff --git a/examples/corelib/bindableproperties/shared/subscriptionwindow.cpp b/examples/corelib/bindableproperties/shared/subscriptionwindow.cpp new file mode 100644 index 0000000000..03269dfa0c --- /dev/null +++ b/examples/corelib/bindableproperties/shared/subscriptionwindow.cpp @@ -0,0 +1,63 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "subscriptionwindow.h" +#include "ui_subscriptionwindow.h" + +SubscriptionWindow::SubscriptionWindow(QWidget *parent) + : QWidget(parent), ui(new Ui::SubscriptionWindow) +{ + ui->setupUi(this); +} + +SubscriptionWindow::~SubscriptionWindow() +{ + delete ui; +} diff --git a/examples/corelib/bindableproperties/shared/subscriptionwindow.h b/examples/corelib/bindableproperties/shared/subscriptionwindow.h new file mode 100644 index 0000000000..9bc3acd91a --- /dev/null +++ b/examples/corelib/bindableproperties/shared/subscriptionwindow.h @@ -0,0 +1,76 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef SUBSCRIPTIONWINDOW_H +#define SUBSCRIPTIONWINDOW_H + +#include + +QT_BEGIN_NAMESPACE +namespace Ui { +class SubscriptionWindow; +} +QT_END_NAMESPACE + +class User; + +class SubscriptionWindow : public QWidget +{ + Q_OBJECT + +public: + explicit SubscriptionWindow(QWidget *parent = nullptr); + ~SubscriptionWindow(); + +private: + Ui::SubscriptionWindow *ui; +}; + +#endif // SUBSCRIPTIONWINDOW_H diff --git a/examples/corelib/bindableproperties/shared/subscriptionwindow.ui b/examples/corelib/bindableproperties/shared/subscriptionwindow.ui new file mode 100644 index 0000000000..7bc2931373 --- /dev/null +++ b/examples/corelib/bindableproperties/shared/subscriptionwindow.ui @@ -0,0 +1,280 @@ + + + SubscriptionWindow + + + + 0 + 0 + 639 + 269 + + + + Subscription + + + + + + + + + + Qt::Horizontal + + + + 40 + 20 + + + + + + + + Germany + + + + + + + :/germany.png:/germany.png + + + + 32 + 32 + + + + + + + + Norway + + + + + + + :/norway.png:/norway.png + + + + 32 + 32 + + + + + + + + Finland + + + + + + + :/finland.png:/finland.png + + + + 32 + 32 + + + + + + + + + + + + + 14 + 75 + true + + + + Age + + + 3 + + + + + + + + 0 + 0 + + + + + 80 + 0 + + + + 0 + + + + + + + Qt::Horizontal + + + + 40 + 20 + + + + + + + + + + Qt::Vertical + + + + 20 + 40 + + + + + + + + + + + 14 + 75 + true + + + + Interval + + + 3 + + + + + + + Monthly + + + true + + + + + + + Quarterly + + + + + + + Yearly + + + + + + + + + Qt::Vertical + + + + 20 + 40 + + + + + + + + + + + 14 + 75 + true + + + + Price/month + + + 3 + + + + + + + 0.0 + + + + + + + Qt::Horizontal + + + + 40 + 20 + + + + + + + + + + Qt::Vertical + + + + 20 + 40 + + + + + + + + + + + diff --git a/examples/corelib/bindableproperties/subscription/CMakeLists.txt b/examples/corelib/bindableproperties/subscription/CMakeLists.txt new file mode 100644 index 0000000000..a5480e03c7 --- /dev/null +++ b/examples/corelib/bindableproperties/subscription/CMakeLists.txt @@ -0,0 +1,53 @@ +cmake_minimum_required(VERSION 3.16) +project(subscription LANGUAGES CXX) + +set(CMAKE_INCLUDE_CURRENT_DIR ON) + +set(CMAKE_AUTOMOC ON) +set(CMAKE_AUTORCC ON) +set(CMAKE_AUTOUIC ON) + +if(NOT DEFINED INSTALL_EXAMPLESDIR) + set(INSTALL_EXAMPLESDIR "examples") +endif() + +set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/corelib/bindableproperties/subscription") + +find_package(Qt6 COMPONENTS Core) +find_package(Qt6 COMPONENTS Gui) +find_package(Qt6 COMPONENTS Widgets) + +qt_add_executable(subscription + ../shared/subscriptionwindow.cpp ../shared/subscriptionwindow.h ../shared/subscriptionwindow.ui + main.cpp + subscription.cpp subscription.h + user.cpp user.h +) +target_link_libraries(subscription PUBLIC + Qt::Core + Qt::Gui + Qt::Widgets +) + + +# Resources: +set(countries_resource_files + "../shared/finland.png" + "../shared/germany.png" + "../shared/norway.png" +) + +qt6_add_resources(subscription "countries" + PREFIX + "/" + BASE + "../shared" + FILES + ${countries_resource_files} +) + +install(TARGETS subscription + RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" + BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" + LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}" +) diff --git a/examples/corelib/bindableproperties/subscription/main.cpp b/examples/corelib/bindableproperties/subscription/main.cpp new file mode 100644 index 0000000000..c987448611 --- /dev/null +++ b/examples/corelib/bindableproperties/subscription/main.cpp @@ -0,0 +1,128 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "../shared/subscriptionwindow.h" +#include "subscription.h" +#include "user.h" + +#include +#include +#include +#include +#include +#include + +int main(int argc, char *argv[]) +{ + QApplication a(argc, argv); + User user; + Subscription subscription(&user); + + SubscriptionWindow w; + + // Initialize subscription data + QRadioButton *monthly = w.findChild("btnMonthly"); + QObject::connect(monthly, &QRadioButton::clicked, &subscription, [&] { + subscription.setDuration(Subscription::Monthly); + }); + QRadioButton *quarterly = w.findChild("btnQuarterly"); + QObject::connect(quarterly, &QRadioButton::clicked, &subscription, [&] { + subscription.setDuration(Subscription::Quarterly); + }); + QRadioButton *yearly = w.findChild("btnYearly"); + QObject::connect(yearly, &QRadioButton::clicked, &subscription, [&] { + subscription.setDuration(Subscription::Yearly); + }); + + // Initialize user data + QPushButton *germany = w.findChild("btnGermany"); + QObject::connect(germany, &QPushButton::clicked, &user, [&] { + user.setCountry(User::Germany); + }); + QPushButton *finland = w.findChild("btnFinland"); + QObject::connect(finland, &QPushButton::clicked, &user, [&] { + user.setCountry(User::Finland); + }); + QPushButton *norway = w.findChild("btnNorway"); + QObject::connect(norway, &QPushButton::clicked, &user, [&] { + user.setCountry(User::Norway); + }); + + QSpinBox *ageSpinBox = w.findChild("ageSpinBox"); + QObject::connect(ageSpinBox, &QSpinBox::valueChanged, &user, [&](int value) { + user.setAge(value); + }); + + // Initialize price data + QLabel *priceDisplay = w.findChild("priceDisplay"); + priceDisplay->setText(QString::number(subscription.price())); + priceDisplay->setEnabled(subscription.isValid()); + + // Track the price changes + QObject::connect(&subscription, &Subscription::priceChanged, [&] { + priceDisplay->setText(QString::number(subscription.price())); + }); + + QObject::connect(&subscription, &Subscription::isValidChanged, [&] { + priceDisplay->setEnabled(subscription.isValid()); + }); + + QObject::connect(&user, &User::countryChanged, [&] { + subscription.calculatePrice(); + subscription.updateValidity(); + }); + + QObject::connect(&user, &User::ageChanged, [&] { + subscription.updateValidity(); + }); + + w.show(); + return a.exec(); +} diff --git a/examples/corelib/bindableproperties/subscription/subscription.cpp b/examples/corelib/bindableproperties/subscription/subscription.cpp new file mode 100644 index 0000000000..7f6da35862 --- /dev/null +++ b/examples/corelib/bindableproperties/subscription/subscription.cpp @@ -0,0 +1,106 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "subscription.h" +#include "user.h" + +Subscription::Subscription(User *user) : m_user(user) +{ + Q_ASSERT(user); +} + +void Subscription::calculatePrice() +{ + const auto oldPrice = m_price; + + m_price = qRound(calculateDiscount() * m_duration * basePrice()); + if (m_price != oldPrice) + emit priceChanged(); +} + +void Subscription::setDuration(Duration newDuration) +{ + if (newDuration != m_duration) { + m_duration = newDuration; + calculatePrice(); + emit durationChanged(); + } +} + +double Subscription::calculateDiscount() const +{ + switch (m_duration) { + case Monthly: + return 1; + case Quarterly: + return 0.9; + case Yearly: + return 0.6; + } + Q_ASSERT(false); + return -1; +} + +int Subscription::basePrice() const +{ + if (m_user->country() == User::None) + return 0; + + return (m_user->country() == User::Norway) ? 100 : 80; +} + +void Subscription::updateValidity() +{ + bool isValid = m_isValid; + m_isValid = m_user->country() != User::None && m_user->age() > 12; + + if (m_isValid != isValid) + emit isValidChanged(); +} diff --git a/examples/corelib/bindableproperties/subscription/subscription.h b/examples/corelib/bindableproperties/subscription/subscription.h new file mode 100644 index 0000000000..95b840bbe5 --- /dev/null +++ b/examples/corelib/bindableproperties/subscription/subscription.h @@ -0,0 +1,91 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef SUBSCRIPTION_H +#define SUBSCRIPTION_H + +#include +#include + +class User; + +class Subscription : public QObject +{ + Q_OBJECT +public: + enum Duration { Monthly = 1, Quarterly = 4, Yearly = 12 }; + + Subscription(User *user); + + void calculatePrice(); + int price() const { return m_price; } + + Duration duration() const { return m_duration; } + void setDuration(Duration newDuration); + + bool isValid() const { return m_isValid; } + void updateValidity(); + +signals: + void priceChanged(); + void durationChanged(); + void isValidChanged(); + +private: + double calculateDiscount() const; + int basePrice() const; + + QPointer m_user; + Duration m_duration = Monthly; + int m_price = 0; + bool m_isValid = false; +}; + +#endif // SUBSCRIPTION_H diff --git a/examples/corelib/bindableproperties/subscription/subscription.pro b/examples/corelib/bindableproperties/subscription/subscription.pro new file mode 100644 index 0000000000..68910904bb --- /dev/null +++ b/examples/corelib/bindableproperties/subscription/subscription.pro @@ -0,0 +1,22 @@ +QT += widgets +TARGET = subscription + +SOURCES += main.cpp \ + subscription.cpp \ + user.cpp \ + ../shared/subscriptionwindow.cpp + +target.path = $$[QT_INSTALL_EXAMPLES]/corelib/bindableproperties/subscription +INSTALLS += target + +FORMS += \ + ../shared/subscriptionwindow.ui + +HEADERS += \ + subscription.h \ + user.h \ + ../shared/subscriptionwindow.h + +RESOURCES += \ + ../shared/countries.qrc + diff --git a/examples/corelib/bindableproperties/subscription/user.cpp b/examples/corelib/bindableproperties/subscription/user.cpp new file mode 100644 index 0000000000..af97576cc7 --- /dev/null +++ b/examples/corelib/bindableproperties/subscription/user.cpp @@ -0,0 +1,67 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "user.h" + +void User::setCountry(Country country) +{ + if (m_country != country) { + m_country = country; + emit countryChanged(); + } +} + +void User::setAge(int age) +{ + if (m_age != age) { + m_age = age; + emit ageChanged(); + } +} diff --git a/examples/corelib/bindableproperties/subscription/user.h b/examples/corelib/bindableproperties/subscription/user.h new file mode 100644 index 0000000000..a872ecf8c8 --- /dev/null +++ b/examples/corelib/bindableproperties/subscription/user.h @@ -0,0 +1,82 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef USER_H +#define USER_H + +#include + +class User : public QObject +{ + Q_OBJECT + +public: + enum Country { + None, + Finland, + Germany, + Norway, + }; + + Country country() const { return m_country; } + void setCountry(Country country); + + int age() const { return m_age; } + void setAge(int age); + +signals: + void countryChanged(); + void ageChanged(); + +private: + Country m_country = Country::None; + int m_age = 0; +}; +#endif // USER_H -- cgit v1.2.3